A382265 - cp's OEIS frontend

A382265 In the prime factorization of n replace the k-th prime with the k-th nonprime number.

n	a(n)
1	1
2	1
3	4
4	1
5	6
6	4
7	8
8	1
9	16
10	6
11	9
12	4
13	10
14	8
15	24
16	1
17	12
18	16
19	14
20	6
21	32
22	9
23	15
24	4
25	36
26	10
27	64
28	8
29	16
30	24
31	18
32	1
33	36
34	12
35	48
36	16
37	20
38	14
39	40
40	6
41	21
42	32
43	22
44	9
45	96
46	15
47	24
48	4
49	64
50	36
51	48
52	10
53	25
54	64
55	54
56	8
57	56
58	16
59	26
60	24
61	27
62	18
63	128
64	1
65	60
66	36
67	28
68	12
69	60
70	48
71	30
72	16
73	32
74	20
75	144

[1, 1, 4, 1, 6, 4, 8, 1, 16, 6, 9, 4, 10, 8, 24, 1, 12, 16, 14, 6, 32, 9, 15, 4, 36, 10, 64, 8, 16, 24, 18, 1, 36, 12, 48, 16, 20, 14, 40, 6, 21, 32, 22, 9, 96, 15, 24, 4, 64, 36, 48, 10, 25, 64, 54, 8, 56, 16, 26, 24, 27, 18, 128, 1, 60, 36, 28, 12, 60, 48, 30, 16, 32, 20, 144]

cp's OEIS Frontend

A382265 In the prime factorization of n replace the k-th prime with the k-th nonprime number.

Table of values

List of values

n	a(n)
1	1
2	1
3	4
4	1
5	6
6	4
7	8
8	1
9	16
10	6
11	9
12	4
13	10
14	8
15	24
16	1
17	12
18	16
19	14
20	6
21	32
22	9
23	15
24	4
25	36
26	10
27	64
28	8
29	16
30	24
31	18
32	1
33	36
34	12
35	48
36	16
37	20
38	14
39	40
40	6
41	21
42	32
43	22
44	9
45	96
46	15
47	24
48	4
49	64
50	36
51	48
52	10
53	25
54	64
55	54
56	8
57	56
58	16
59	26
60	24
61	27
62	18
63	128
64	1
65	60
66	36
67	28
68	12
69	60
70	48
71	30
72	16
73	32
74	20
75	144

n	a(n)
1	1
2	1
3	4
4	1
5	6
6	4
7	8
8	1
9	16
10	6
11	9
12	4
13	10
14	8
15	24
16	1
17	12
18	16
19	14
20	6
21	32
22	9
23	15
24	4
25	36
26	10
27	64
28	8
29	16
30	24
31	18
32	1
33	36
34	12
35	48
36	16
37	20
38	14
39	40
40	6
41	21
42	32
43	22
44	9
45	96
46	15
47	24
48	4
49	64
50	36
51	48
52	10
53	25
54	64
55	54
56	8
57	56
58	16
59	26
60	24
61	27
62	18
63	128
64	1
65	60
66	36
67	28
68	12
69	60
70	48
71	30
72	16
73	32
74	20
75	144

n	a(n)
1	1
2	1
3	4
4	1
5	6
6	4
7	8
8	1
9	16
10	6
11	9
12	4
13	10
14	8
15	24
16	1
17	12
18	16
19	14
20	6
21	32
22	9
23	15
24	4
25	36
26	10
27	64
28	8
29	16
30	24
31	18
32	1
33	36
34	12
35	48
36	16
37	20
38	14
39	40
40	6
41	21
42	32
43	22
44	9
45	96
46	15
47	24
48	4
49	64
50	36
51	48
52	10
53	25
54	64
55	54
56	8
57	56
58	16
59	26
60	24
61	27
62	18
63	128
64	1
65	60
66	36
67	28
68	12
69	60
70	48
71	30
72	16
73	32
74	20
75	144